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IPC Interview Questions & Answers - Learning Mode

IPC Interview Questions & Answers - Learning Mode

Interprocess communication (IPC) is a set of programming interfaces that allow a programmer to coordinate activities among different program processes that can run concurrently in an operating system. This allows a program to handle many user requests at the same time. Inter-process communication (IPC) is a mechanism that allows the exchange of data between processes. By providing a user with a set of programming interfaces, IPC helps a programmer organize the activities among different processes.

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IPC Interview Questions & Answers - Learning Mode
Try IPC Interview Questions & Answers - Exam Mode
Question: Explain difference between IPC

Answer: Ipc mechanisms are mianly 5 types

1.pipes:it is related data only send from one pipe output is giving to another pipe input

to share resouses pipe are used

drawback:itis only related process only communicated

2.message queues:message queues are un related process are also communicate with message queues

drawback:user dont know which process curently works

share memory:memory shared in distributed systems some memory wants to share some files that time it Source:
Question: What is symbolic link in unix ?

Answer: ymbolic link is an alias of the existing file/folder. it can be hard link or shoft link Source:
Question: What are the Advantages and disadvantages of script?

Answer: while scripts have the advantages of 1) flexibility to change the of script 2) and being more portable. compiled executables have the advantages of 1) less memory footprint 2) less execution time. Source:
Question: Why do we have serial and parallel interface?

Answer: yes using serial communication is cheap and like applications using mouse serial communications is good Source:
Question: Which Linux distros do you have experience with ?

Answer: Linux is the open source product so if u knows linux command line interface so that we can use not only single distros all most i have linux all distros experience. Source:
Question: What does ?route? command do?

Answer: route command shows you the route table as well as your default gateway Source:
Question: Which distro you prefer?

Answer: RHEL 4 is best for handling smoothly. Source:
What are the system calls used for process management?

Answer: The system calles for process management are fork() which
will create a process
wait() will wait for exit status of all child processes. Source:
Question: What is IPC ?

Answer: Inter Process Communication. IPC is used to pass information between two or more processes.
Question: How shared memory are accessed if we have two processors

Answer: When a memory is shared by more than one process, it must be protected from simultanious access from many process, This is called sycronization.In Linux there are many sycronization techniques such as sephores,spinlocks, per-cpu , mutex, seqlocks,atomic variables,rcu etc. Source:


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